package de.projectgoodmorning.alarm.activities.views;

import android.annotation.SuppressLint;
import android.content.*;
import android.graphics.*;
import android.graphics.Shader.TileMode;
import android.util.*;
import android.view.*;

/**
 * Source form:
 * 	http://code.google.com/p/android-color-picker/
 * 
 * Classnames Refactored
 */
public class ColorFieldView extends View {
	Paint paint;
	Shader luar;
	final float[] color = { 1.f, 1.f, 1.f };

	public ColorFieldView( Context context ) {
		this( context, null );
	}

	public ColorFieldView( Context context, AttributeSet attrs ) {
		this( context, attrs, 0 );
	}

	public ColorFieldView( Context context, AttributeSet attrs, int defStyle ) {
		super( context, attrs, defStyle );
	}

	@SuppressLint( { "DrawAllocation", "DrawAllocation" } )
	@Override
	protected void onDraw( Canvas canvas ) {
		super.onDraw( canvas );
		if( paint == null ) {
			paint = new Paint();
			luar = new LinearGradient( 0.f, 0.f, 0.f, this.getMeasuredHeight(), 0xffffffff,
					0xff000000, TileMode.CLAMP );
		}
		int rgb = Color.HSVToColor( color );
		Shader dalam = new LinearGradient( 0.f, 0.f, this.getMeasuredWidth(), 0.f, 0xffffffff, rgb,
				TileMode.CLAMP );
		ComposeShader shader = new ComposeShader( luar, dalam, PorterDuff.Mode.MULTIPLY );
		paint.setShader( shader );
		canvas.drawRect( 0.f, 0.f, this.getMeasuredWidth(), this.getMeasuredHeight(), paint );
	}

	public void setHue( float hue ) {
		color[0] = hue;
		invalidate();
	}
}
